pymongo auth failed in python script

Question

I have installed mongodb and enabled auth. and its working find. I can connect it from remote notebook using robomongo application:

Host: SERVER_IP PORT: 27017 DATEBASE: prod-db USERNAME: user_name PASS: user_password Auth Mechanism: MONGODB-CR 

and We can connect from server shell locally using:

$ mongo prod-db -u user_name -p user_password 

Everything works fine, but when we try it using pymongo api. authentications failed. below is the python code:

from pymongo import MongoClient  client = MongoClient() client.prod_db.authenticate('user_name', 'user_password', mechanism='MONGODB-CR') db = client.prod_db result = db.users.find()  for document in result:     print(document) 

Tools used:

python 2.7 pymongo versiob 3.3.1 MongoDB shell version: 2.6.10 $ mongod --version db version v2.6.10 2016-10-31T16:34:59.868+0000 git version: nogitversion 2016-10-31T16:34:59.868+0000 OpenSSL version: OpenSSL 1.0.2g  1 Mar 2016 

Error trace:

Traceback (most recent call last):   File "<stdin>", line 1, in <module>   File "/usr/local/lib/python2.7/dist-packages/pymongo/database.py", line 1018, in authenticate     connect=True)   File "/usr/local/lib/python2.7/dist-packages/pymongo/mongo_client.py", line 444, in _cache_credentials     sock_info.authenticate(credentials)   File "/usr/local/lib/python2.7/dist-packages/pymongo/pool.py", line 343, in authenticate     auth.authenticate(credentials, self)   File "/usr/local/lib/python2.7/dist-packages/pymongo/auth.py", line 464, in authenticate     auth_func(credentials, sock_info)   File "/usr/local/lib/python2.7/dist-packages/pymongo/auth.py", line 439, in _authenticate_mongo_cr     sock_info.command(source, query)   File "/usr/local/lib/python2.7/dist-packages/pymongo/pool.py", line 239, in command     read_concern)   File "/usr/local/lib/python2.7/dist-packages/pymongo/network.py", line 102, in command     helpers._check_command_response(response_doc, None, allowable_errors)   File "/usr/local/lib/python2.7/dist-packages/pymongo/helpers.py", line 205, in _check_command_response     raise OperationFailure(msg % errmsg, code, response) 

Solution: problem was with database name, following code works fine:

from pymongo import MongoClient  client = MongoClient('mongodb://user_name:user_password@localhost:27017/prod-db') db = client['prod-db']  result = db.users.find() for document in result:     print document 

Answer 1

Please try something like this:

client = MongoClient("mongodb://user_name:user_password@SERVER_IP/prod-db") db = client['prod-db'] 

Answer 2

If you've tried the above answers (from milos.ai) and you're still getting an error:

pymongo.errors.OperationFailure: Authentication failed. 

There's a good chance you need to add ?authSource=admin to the end of your uri.

Here's a working solution that I'm using with MongoDB server version 4.2.6 and MongoDB shell version v3.6.9.

from pymongo import MongoClient  # Replace these with your server details MONGO_HOST = "XX.XXX.XXX.XXX"  MONGO_PORT = "27017" MONGO_DB = "database" MONGO_USER = "admin" MONGO_PASS = "pass"  uri = "mongodb://{}:{}@{}:{}/{}?authSource=admin".format(MONGO_USER, MONGO_PASS, MONGO_HOST, MONGO_PORT, MONGO_DB) client = MongoClient(uri) 

And if you're using command line, you'll get the same fix by adding the argument --authenticationDatabase admin